package share.seckill.util;

import org.apache.commons.codec.digest.DigestUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class MD5Util {

    private static final Logger logger= LoggerFactory.getLogger(MD5Util.class);

    public static String md5(String src){
        return DigestUtils.md5Hex(src);
    }

    private static final String salt = "1a2b3c4d";

    public static String inputPassToFormPass(String inputPass){
        String str = "" + salt.charAt(0) +salt.charAt(2) + inputPass + salt.charAt(5) + salt.charAt(4);
        logger.info(str);
        return md5(str);
    }

    public static String formPassToDBPass(String formPass, String salt) {
        String str = ""+salt.charAt(0)+salt.charAt(2) + formPass +salt.charAt(5) + salt.charAt(4);
        return md5(str);
    }

    public static String inputPassToDbPass(String inputPass, String saltDB) {
        String formPass = inputPassToFormPass(inputPass);
        String dbPass = formPassToDBPass(formPass, saltDB);
        return dbPass;
    }
}
